Deletion implemented

src/main.zig

@@ -19,7 +19,9 @@ pub fn main(init: std.process.Init) !void {
     rl.setTargetFPS(rl.getMonitorRefreshRate(monitor));
 
     var sim: Simulator = .init(allocator);
-    defer sim.deinit();
+    defer sim.deinit() catch |err| {
+        std.debug.panic("Failed to deinitialise the sim: {}\n", .{err});
+    };
 
     while (!rl.windowShouldClose()) {
         rl.beginDrawing();
@@ -27,6 +29,7 @@ pub fn main(init: std.process.Init) !void {
 
         const pos = rl.getMousePosition();
         sim.handleInput(pos);
+        sim.update(pos);
 
         sim.draw(pos);
     }